144 THE CANADIAN ENTOMOLOGIST. 



black, a little shining • a group of two or three bristles just below the 

 prothoracic spiracle, and a pair at the base of the forecox?e. Abdomen 

 wholly satiny black like thoracic dorsum, except the first segment, which 

 is whitish above in the middle ; the last joint longer than the preceding. 

 Halteres black, the pedicel a little yellowish at base. Fore and hind 

 tibiie with one, middle tibiae with two, bristles on the outer side a little 

 below the knee ; the hind tibiae have also a scattering row of three smaller 

 ones, running down to the tip ; the tips of middle and hind tibiae armed 

 with long spurs. The legs are wholly satiny brownish-black, except that 

 the front ones are from the coxae gradually lighter, ending in brownish- 

 yellow tarsi, and that the middle tarsi, and sometimes the tibiae, are also 

 brownish yellow. Wings subhyaline ; the second heavy vein is forked ; 

 the first light vein is nearly straight, and ends a little before the apex. 



Length of body, 3 mm.; of wing, 2 mm. 



Brookings, South Dakota. 



Three female specimens, reared from Cimbex americana. Leach. Dates 

 of emerging. May 24, 26, 27. 

 Phora setacea, n. sp. 



? . Head black, front very wide, at the middle of the lower border 

 with two pairs of small bristles pointing downward, the smaller pair 

 difficult to make out. Ocellar tubercle bounded by a suture which extends 

 as a delicate line down the front. Antennae fuscous. Palpi yellow, with 

 black bristles. Proboscis yellow. Thorax black, with a few scattered 

 bristles along the dorsal margin. Abdomen black, tapering, the last seg- 

 ment cylindrical, more or less retracted, the extremity yellow. Halteres very 

 light yellow. Front and middle legs yellow, the hind ones more brownish. 

 One spur at the apex of the tibia, except in the front legs, where there 

 are none. Wings hyaline, the second heavy vein forked, the first light 

 vein nearly straight, rather long bristles on costal border to end of second 

 heavy vein. 



$ . General colour same as ? , but the bristles everywhere noticeably 

 longer. On the lower edge of the front both pairs are quite prominent, 

 leaning down but Httle. The coxae have a few bristles on the outer and 

 apical portions ; the posterior coxae have a conical protuberance on the 

 hind side. The genitalia are exserted, lying close up under the back part 

 of the abdomen. They consist of some shriveled clasping organs, the 

 structure being unrecognizable. They arise apparently from the next to 

 the last segment, leaving the last one projecting downward and backward 



